双胍类降糖药易出现的严重不良反应是
A．胃肠道反应B．红细胞减少C．低血糖D．皮疹E．乳酸性酸血症
参考答案：E
with the size of the whole earth,the biggest ocean does not seem big at all. [ ]
A.When compared
B.When comparing
C.Comparing
D.While comparing
下列何种抗凝剂不适合红细胞比容测定时使用
A．草酸钾B．肝素C．EDTA-Na2D．双草酸盐E．枸橼酸盐
